Print Email Facebook Twitter From flat sheets to curved geometries Title From flat sheets to curved geometries: Origami and kirigami approaches Author Callens, S.J.P. (TU Delft Biomaterials & Tissue Biomechanics) Zadpoor, A.A. (TU Delft Biomaterials & Tissue Biomechanics) Date 2017 Abstract Transforming flat sheets into three-dimensional structures has emerged as an exciting manufacturing paradigm on a broad range of length scales. Among other advantages, this technique permits the use of functionality-inducing planar processes on flat starting materials, which after shape-shifting, result in a unique combination of macro-scale geometry and surface topography. Fabricating arbitrarily complex three-dimensional geometries requires the ability to change the intrinsic curvature of initially flat structures, while simultaneously limiting material distortion to not disturb the surface features. The centuries-old art forms of origami and kirigami could offer elegant solutions, involving only folding and cutting to transform flat papers into complex geometries. Although such techniques are limited by an inherent developability constraint, the rational design of the crease and cut patterns enables the shape-shifting of (nearly) inextensible sheets into geometries with apparent intrinsic curvature. Here, we review recent origami and kirigami techniques that can be used for this purpose, discuss their underlying mechanisms, and create physical models to demonstrate and compare their feasibility. Moreover, we highlight practical aspects that are relevant in the development of advanced materials with these techniques. Finally, we provide an outlook on future applications that could benefit from origami and kirigami to create intrinsically curved surfaces. To reference this document use: http://resolver.tudelft.nl/uuid:fdb73fe1-0c6e-4a00-b622-ff3aa96d9fb6 DOI https://doi.org/10.1016/j.mattod.2017.10.004 ISSN 1369-7021 Source Materials Today, 21 (April 2018) (3), 241-264 Part of collection Institutional Repository Document type journal article Rights © 2017 S.J.P. Callens, A.A. Zadpoor Files PDF From_flat_sheets_to_curve ... oaches.pdf 32.93 MB Close viewer /islandora/object/uuid:fdb73fe1-0c6e-4a00-b622-ff3aa96d9fb6/datastream/OBJ/view